hordeum vulgare/carie dentară

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Dissection of heat-induced systemic signals: superiority of ion fluxes to voltage changes in substomatal cavities.

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Using non-invasive ion-selective microprobes, that were placed in substomatal cavities, long-distance signalling has been investigated in intact Hordeum vulgare and Vicia faba seedlings. Heat (flame), applied to one leaf (S-leaf), triggers apoplastic ion activity (pH, pCa, pCl) transients in a

Identification of a new oat β-amylase by functional proteomics.

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Oat (Avena sativa L.) seed extracts exhibited a high degree of catalytic activity including amylase activities. Proteins in the oat seed extracts were optimized for their amylolytic activities. Oat extract with amylolytic activity was separated by SDS-PAGE and a major protein band with an apparent

[C]Sucrose Uptake and Labeling of Starch in Developing Grains of Normal and segl Barley.

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Previous work showed that the segl mutant of barley (Hordeum vulgare cv Betzes) did not differ from normal Betzes in plant growth, photosynthesis, or fertility, but it produced only shrunken seeds regardless of pollen source. To determine whether defects in sucrose uptake or starch synthesis

Root-to-shoot signalling: apoplastic alkalinization, a general stress response and defence factor in barley (Hordeum vulgare).

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We used a noninvasive microprobe technique to record in substomatal cavities of barley leaves the apoplastic pH response to different stress situations. When K+ (or Na+) activity at the roots of intact plants was increased from 1 to 50 mM, the leaf apoplastic pH increased by 0.4 to 0.6 units within

A Bronchopleurocutaneous Fistula Caused by Unexpected Foreign Body Aspiration: False Barley (Hordeum murinum).

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A 13-year-old boy with no previous history of foreign body aspiration, presenting with side pain, was referred to our clinic with a pneumonia diagnosis by an external medical facility where he had been started on antibiotic treatment. Consolidation in the right inferior lobe and minimal pleural

Demethylase Inhibitor Fungicide Resistance in Pyrenophora teres f. sp. teres Associated with Target Site Modification and Inducible Overexpression of Cyp51.

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Pyrenophora teres f. sp. teres is the cause of net form of net blotch (NFNB), an economically important foliar disease in barley (Hordeum vulgare). Net and spot forms of net blotch are widely controlled using site-specific systemic fungicides. Although resistance to succinate dehydrogenase

Spatio-temporal dynamics of fructan metabolism in developing barley grains.

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Barley (Hordeum vulgare) grain development follows a series of defined morphological and physiological stages and depends on the supply of assimilates (mainly sucrose) from the mother plant. Here, spatio-temporal patterns of sugar distributions were investigated by mass spectrometric imaging,

The relation of anatomy to water movement and cellular response in young barley leaves.

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Young barley (Hordeum vulgare L. cv Arivat) leaves were examined anatomically and physiologically to infer the pathway of transpirational water movement and to explain why the growing region is more responsive to osmotic stress than the expanded blade. Vessels with open lumens extend from the

In vitro and in situ techniques yield different estimates of ruminal disappearance of barley

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Objectives were to compare in vitro and in situ disappearance of dry matter (DM), neutral detergent fiber (NDF), and starch of traditional (unprocessed and rolled) and hulless (unprocessed) barley. Experiment 1: three barley sources were compared using in vitro techniques. The sources were: 1)

Water droplets in intercellular spaces of barley leaves examined by low-temperature scanning electron microscopy.

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Low-temperature scanning electron microscopy was used to examine fracture faces in leaf blades taken from well-watered or drought-stressed barley (Hordeum vulgare L. cv. Mazurka) seedlings. The leaf blades were freeze-fixed while hydrated and were examined with or without gold-coating. There were

Barley mildew and its elicitor chitosan promote closed stomata by stimulating guard-cell S-type anion channels.

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Stomatal closure is known to be associated with early defence responses of plant cells triggered by microbe-associated molecular patterns (MAMPs). However, the molecular mechanisms underlying these guard-cell responses have not yet been elucidated. We therefore studied pathogen-induced changes in

System potentials, a novel electrical long-distance apoplastic signal in plants, induced by wounding.

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Systemic signaling was investigated in both a dicot (Vicia faba) and a monocot (Hordeum vulgare) plant. Stimuli were applied to one leaf (S-leaf), and apoplastic responses were monitored on a distant leaf (target; T-leaf) with microelectrodes positioned in substomatal cavities of open stomata.

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